Question about Canon PIXMA MP780 All-In-One InkJet Printer

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Asking me change values???

My Pixma MP780 will not print black ink. I have purchased a new print head and replaced all the cartridges and it is still not printing black. I have run through the maintanence menu several times cleaning and aligning the head but now I am trying to calibrate and it is asking me to change the H value. I do not know where the values are supposto be set. Can anyone help me here. I have them all set at zero right now. Thanks.

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SOURCE: Euro Symbol Printing

0128 is not a recognisable sysmbol Go to the Toshiba web site and the tech Support team- evidently there has been an error in the printed instruct as to the symbol number.

Posted on May 26, 2007

  • 56 Answers

SOURCE: Pixma MP780 Printer, not printing

sometimes those measures of ink levels are not very accurate. actually they're usually rather far off... try a new cartridge Usually the easiest solution.

Posted on Aug 17, 2007

  • 1 Answer

SOURCE: Black 3ek cartridge not printing

I had the same problem before with 3e black ink. It simply does not print too, so what I did if i get to print black and white i will set the characters into dark gray! it looks like draft printing but the things is it can be printed.. I tried to do every instructions available but to fail. I almost dump it till I decided to set it aside for a while. After a week I tried using it again, and it functions well. I guess the printer just want to say, "HEY BUDDY, GIVE ME A LITTLE BREAK!"

Posted on May 15, 2008

  • 1 Answer

SOURCE: canon pixma ip500 horizontal bands of non-printing areas

Hi it's Gill again. I've been looking around more on the net and I think the problem is our printers need new printheads which I'm told are spare parts easy to change. Hope this helps. Gill

Posted on Apr 03, 2009

  • 2 Answers

SOURCE: Canon Pixma ip3000 printer, changed black ink

i had the same problem and just repeated the cleaning and testing, eventually the black showed up but took more than a few repetitions

Posted on Jun 30, 2009

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SOURCE: After replacing black ink cartridge, black ink will not print

check the cartridge contacts in the printer \
a lot of time they geet covered in ink this will not allow the cartridge to print properly and cause headaches
clean with a baby wipe or a paper towel with soap on it
dry thuoly with hair dryer and try again

Posted on Aug 03, 2009

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1 Answer

Cannon Pixma MP780 won't print. Just replaced black ink cartridge, do I have to replace all of them for it to print

Not normally but the black print head nozzles maybe blocked.
Inkjet printers need to be used frequently to prevent ink drying out and blocking the print head nozzles.
If the print head cleaning maintenance routine does not clear the blockages, then print head needs replacing, but it may be expensive.
It may be more cost effective to buy a later model and better printer than replace the print head.

Mar 08, 2013 | Canon PIXMA MP780 All-In-One InkJet...

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I replaced a black ink cartridge and now it wont print. I have a Canon mp780 inkjet. I have used the maintenance function to clean the head, align the head, and do a nozzle check. Any ideas? Thanks Ron

One possibility is the cartridge you put in is a third party without the chip. If the printer is trying to read how much ink is in the cartridge and either there is no chip or the chip is faulty the printer will think there is no ink in that slot and not print.

That solution would be either to go back to canon ink or purchase from a trusted third party seller.

Jul 27, 2011 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

After many cleanings, head refreshings, and "head allignments" the color printing is very light...especially the black. I've put in all new inks and the print is still very light. The new ink...

Try putting a bit of isopropyl alcohol in the bottom of the cartridge holder where the ink goes through and letting it sit for a couple hours then putting the cartridges back in and running the cleaning cycle a few times.

The alcohol should help dissolve the dried ink in the print head.

Jan 07, 2011 | Canon PIXMA MP780 All-In-One InkJet...

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I haven't used my canon pixma for a few weeks, came to use it again and the 3e black cartridge won't work, (tried printing from computer and copying) have done a clean, deep clean and nozzle check, even...

The black print head is clogged. The reason why the black is clogged and not the photo black or any colors is that the black is pigment ink and the photo black and colors are dye based ink. The pigment ink is a particulate formulation that binds up when water is evaporated out of the ink. You need to buy a new print head the fix the problem. You can buy a new print head for $75 from precision

Mar 18, 2010 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

Black ink in canon mp780 will not print black

take cartridge to a ink refill store(cartridge world,etc)they can test for free,also make sure that your contacts are clean were cartridges mate with machine,clean with alcohol,qtip,and canned air!! GOOD LUCK!!!

Jun 22, 2009 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

Mp780 wrong cartridge error

Try to reset to factory .
Remove ink cartridges and print head.
Power off machine and unplug for 10-15 minutes.
Restart machine and install head and cartridges.

Jun 13, 2009 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

Select print and paper is blank - all cartridges have ink

dear friend

the thing that you have changes is ink tank, not the whole unit

this problem is with all the machines which have separate ink tank and head assembly

generally head gets blocked and users keep on changing the ink tanks

friend you have to change head also to get your machine working


Apr 10, 2009 | Canon PIXMA MP780 All-In-One InkJet...

2 Answers

Not printing in black on in color

Hi Anne.
Recheck the cartridge .. (Clear of plastic cover)
Reseat all crt/ ...
Do a head cleaning and aligning . you can download instruction here..:
Good luck.

Feb 22, 2009 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

Canon pixma mp780

Try uninstalling/reinstalling the drivers.

Is the error light flashing?

From the printer utility can you print a nozzle check sheet or align the printhead?

Does it seem to be printing (feeding sheet and moving printhead) or nothing happening at all?

Try removing all the tanks, take out the head. If blocked try cleaning manualy by running warm water over the ink ports/printhead jets - dry off and reinstall.

May 10, 2008 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

Pixma MP780 Printer, not printing

sometimes those measures of ink levels are not very accurate. actually they're usually rather far off... try a new cartridge Usually the easiest solution.

Aug 13, 2007 | Canon PIXMA MP780 All-In-One InkJet...

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